/*
 * Copyright (c) 2017 Ambroz Bizjak
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef APRINTER_INSTANCE_H
#define APRINTER_INSTANCE_H

#define APRINTER_INSTANCE_REMOVE_PARENS(...) __VA_ARGS__

/**
 * Convenience macro for declaring the Instance template-alias
 * in a service definition.
 */
#define APRINTER_DEF_INSTANCE(self, class) \
template <typename Instance_self=self> \
using Instance = class<Instance_self>;

/**
 * Convenience macro for instantiating a service instance.
 */
#define APRINTER_MAKE_INSTANCE(service_name, arg_expr_parens) \
struct service_name##_arg : public APRINTER_INSTANCE_REMOVE_PARENS arg_expr_parens {}; \
using service_name = typename service_name##_arg::template Instance<service_name##_arg>;

#endif
